CN205453147U - Three -phase unbalanced load adjusting device - Google Patents
Three -phase unbalanced load adjusting device Download PDFInfo
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- CN205453147U CN205453147U CN201620197083.2U CN201620197083U CN205453147U CN 205453147 U CN205453147 U CN 205453147U CN 201620197083 U CN201620197083 U CN 201620197083U CN 205453147 U CN205453147 U CN 205453147U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
The embodiment of the utility model discloses three -phase unbalanced load adjusting device, include: with the three -phase low -voltage circuit breaker that three -phase circuit is connected, three -phase low -voltage circuit breaker's three -phase output terminal is continuous with the input of first contactor, second contactor and third contactor respectively, and the output of second contactor is connected to the output of first contactor, and the output of third contactor is connected to the output of first contactor. The output of the device's three contactor links together and the uniphase output end is constituteed to the neutral conductor, and at the operation in -process, three contactors switch -ons only wherein when the commutation, need not to break off the circuit breaker, only need break off earlier the contactor of this switch -on, switch the switch -on of another contactor can, easy operation is convenient, commutation switching speed is fast, has shortened the power off time, has reduced the power failure scope, has improved service reliability, has effectively reduced the unbalanced three phase degree.
Description
Technical field
This utility model relates to electrical equipment technical field, particularly relates to a kind of three-phase load unbalance adjusting apparatus.
Background technology
At present, in supply and distribution network, three-phase alternating current is often used to carry out the conveying of electric energy.Three-phase alternating-current supply, is equal by three frequencies, amplitude, the power supply of the exchange electromotive force composition of phase place mutual deviation 120 degree successively.
In actual applications, generally there is three-phase imbalance phenomenon, i.e. there will be three-phase current or the inconsistent situation of voltage magnitude, and difference in magnitude exceedes the scope of regulation.Circuit and transformator can be caused a certain degree of damage by three-phase imbalance.In order to improve the three-phase imbalance phenomenon that low voltage electric network generally exists, method Shi Xianduitai district (power supply area of the transformator) load used at present is tested, and calculates three-phase load unbalance degree, then with manually carrying out load adjustment.Whole low-voltage platform area must be had a power failure before adjustment, then the branch line that low-voltage circuit load is bigger is adjusted.Often adjust a T contact, from doing work ticket to end-of-job, need long time, both have impact on user's normal electricity consumption, cause again the income of electricity charge of power supply enterprise to lose.
Therefore, how to shorten the power off time during adjustment, power supply reliability can be improved again, effectively reduce tri-phase unbalance factor, be that those skilled in the art are presently required and solve the technical problem that.
Utility model content
The purpose of this utility model is to provide a kind of three-phase load unbalance adjusting apparatus, can shorten the power off time during adjustment, can improve again power supply reliability, effectively reduce tri-phase unbalance factor.
For solving above-mentioned technical problem, this utility model provides following technical scheme:
A kind of three-phase load unbalance adjusting apparatus, including: the three-phase low-voltage chopper being connected with three-phase circuit, the three-phase output end of described three-phase low-voltage chopper input with the first catalyst, the second catalyst and the 3rd catalyst respectively is connected, the outfan of described first catalyst connects the outfan of described second catalyst, and the outfan of described first catalyst connects the outfan of described 3rd catalyst.
Preferably, described first catalyst includes the first catalyst body and the A phase start button controlling described first catalyst break-make and A phase stop button.
Preferably, described second catalyst includes the second catalyst body and the B phase start button controlling described second catalyst break-make and B phase stop button.
Preferably, described 3rd catalyst includes the 3rd catalyst body and the C phase start button controlling described 3rd catalyst break-make and C phase stop button.
Preferably, also include:
It is connected with described first catalyst, the second catalyst and the 3rd catalyst respectively, for indicating the display lamp of work phase sequence.
Preferably, also include:
It is connected with described first catalyst, the second catalyst and the 3rd catalyst, controls at most one in running order electric interlocking circuit in described first catalyst, the second catalyst and the 3rd catalyst three.
Preferably, also include:
Three-phase load unbalance adjusting apparatus housing, described three-phase load unbalance adjusting apparatus housing includes a switch gate, described three-phase low-voltage chopper, the first catalyst, the second catalyst and the 3rd catalyst are fixedly installed in described three-phase load unbalance adjusting apparatus housing, and described A phase start button, A phase stop button, B phase start button, B phase stop button, C phase start button, C phase stop button and display lamp are arranged on the cabinet panel of described three-phase load unbalance adjusting apparatus housing.
Compared with prior art, technique scheme has the advantage that
The three-phase load unbalance adjusting apparatus that this utility model embodiment is provided, including: the three-phase low-voltage chopper being connected with three-phase circuit, the three-phase output end of three-phase low-voltage chopper respectively with the first catalyst, the second catalyst and the input of the 3rd catalyst, the outfan of the first catalyst connects the outfan of the second catalyst, and the outfan of the first catalyst connects the outfan of the 3rd catalyst.The outfan of three catalysts of this device links together, and the neutral conductor forms single-phase outfan, in running, three catalysts only have a connection therein, when commutation, it is not necessary to cut-off breaker, only need to first disconnect the catalyst of this connection, switching another catalyst is connected, and simple to operation, commutation switch speed is fast, shorten power off time, reduce power failure range, improve power supply reliability, effectively reduce tri-phase unbalance factor.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The three-phase load unbalance adjusting apparatus structural representation that Fig. 1 is provided by a kind of detailed description of the invention of this utility model；
The electric interlock control principle schematic diagram of the three-phase load unbalance adjusting apparatus that Fig. 2 is provided by a kind of embodiment of this utility model；
The three-phase load unbalance adjusting apparatus contour structures schematic diagram that Fig. 3 is provided by a kind of embodiment of this utility model.
Detailed description of the invention
Core of the present utility model is to provide a kind of three-phase load unbalance adjusting apparatus, can shorten the power off time during adjustment, can improve again power supply reliability, effectively reduce tri-phase unbalance factor.
Understandable in order to enable above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in detail.
Elaborate detail in the following description so that fully understanding this utility model.But this utility model can be different from alternate manner described here implement with multiple, those skilled in the art can do similar popularization in the case of this utility model intension.Therefore this utility model is not limited by following public detailed description of the invention.
Refer to the three-phase load unbalance adjusting apparatus structural representation that Fig. 1, Fig. 1 are provided by a kind of detailed description of the invention of this utility model.
A kind of detailed description of the invention of the present utility model provides a kind of three-phase load unbalance adjusting apparatus, including: the three-phase low-voltage chopper 1 being connected with three-phase circuit, the three-phase output end of three-phase low-voltage chopper 1 input with first catalyst the 2, second catalyst 3 and the 3rd catalyst 4 respectively is connected, the outfan of the first catalyst 2 connects the outfan of the second catalyst 3, and the outfan of the first catalyst 2 connects the outfan of the 3rd catalyst 4.
As shown in Figure 1, A, B, C three-phase of three-phase circuit is connected into three inputs of three-phase low-voltage chopper 1 respectively, the most corresponding outfan of 1 three inputs of three-phase low-voltage chopper, and 1 three outfans of three-phase low-voltage chopper input with first catalyst the 2, second catalyst 3 and the 3rd catalyst 4 respectively is connected, the outfan of three catalysts is joined together to form public output, single-phase outfan is formed, to be connected in load with the neutral conductor 5.In use, three catalysts only have a connection, when three-phase load unbalance degree is beyond predetermined threshold value, i.e. need commutation, now, it is not necessary to disconnect three-phase low-voltage chopper, only need to disconnect the catalyst that work at present is corresponding, then switching connection needs the catalyst of work.Simple to operation, commutation switch speed is fast, power off time is simply equal to the time of catalyst switching, substantially reduces power off time, and only need to carry out the branch line that low-voltage circuit load is bigger having a power failure adjusting, without whole low-voltage platform is had a power failure, reduce power failure range, improve power supply reliability, and quickly commutation, quickly fault phase can be adjusted, effectively reduce tri-phase unbalance factor.
Refer to the electric interlock control principle schematic diagram of the three-phase load unbalance adjusting apparatus that Fig. 2, Fig. 2 are provided by a kind of embodiment of this utility model.
On the basis of above-mentioned embodiment, in this utility model one embodiment, the first catalyst includes the first catalyst body and controls A phase the start button 211 and A phase stop button 212 of the first catalyst break-make.Second catalyst includes the second catalyst body and controls B phase the start button 221 and B phase stop button 222 of the second catalyst break-make.3rd catalyst includes the 3rd catalyst body and controls C phase the start button 231 and C phase stop button 232 of the 3rd catalyst break-make.Further, this device also includes: be connected with the first catalyst, the second catalyst and the 3rd catalyst respectively, for indicating the display lamp of work phase sequence, wherein, display lamp includes the 3rd display lamp 243 that the second display lamp 242 that the first display lamp 241 being connected with the first catalyst is connected is connected with the 3rd catalyst with the second catalyst；It is connected with the first catalyst, the second catalyst and the 3rd catalyst, controls at most one in running order electric interlocking circuit in the first catalyst, the second catalyst and the 3rd catalyst three.
In order to further facilitate commutation operation, each catalyst arranges start button and the stop button of corresponding phase.When needs commutation, only need to first press the stop button of work phase, then press the start button that need to access phase.Device is provided with electric interlocking circuit, its principle is as shown in Figure 2, KMa is the contact of the first catalyst, KMb is the contact of the second catalyst, KMc is the contact of the 3rd catalyst, only after the corresponding catalyst of work phase disconnects, the corresponding catalyst that need to access phase could adhesive connection, it is to avoid the short circuit phenomenon caused because of maloperation.
Refer to the three-phase load unbalance adjusting apparatus contour structures schematic diagram that Fig. 3, Fig. 3 are provided by a kind of embodiment of this utility model.
In a kind of embodiment of the present utility model, three-phase load unbalance adjusting apparatus also includes: three-phase load unbalance adjusting apparatus housing 31, three-phase load unbalance adjusting apparatus housing includes a switch gate, three-phase low-voltage chopper, first catalyst, second catalyst and the 3rd catalyst are fixedly installed in three-phase load unbalance adjusting apparatus housing, A phase start button 211, A phase stop button 212, B phase start button 221, B phase stop button 222, C phase start button 231, C phase stop button 232 and each display lamp are arranged on the cabinet panel of three-phase load unbalance adjusting apparatus housing.
Each functional part of three-phase load unbalance adjusting apparatus is integrated in three-phase load unbalance adjusting apparatus housing, it is possible to increase the safety of operation, when carrying out commutation operation, it is not necessary to open switch gate, it is to avoid electric shock accidents occurs during user operation.
In sum, the three-phase load unbalance adjusting apparatus that this utility model embodiment is provided, when application, three catalysts only have a connection, when three-phase load unbalance degree is beyond predetermined threshold value, i.e. need commutation, now, without disconnecting three-phase low-voltage chopper, only need to disconnect the catalyst that work at present is corresponding, then switching connection needs the catalyst of work.Simple to operation, commutation switch speed is fast, power off time is simply equal to the time of catalyst switching, substantially reduces power off time, and only need to carry out the branch line that low-voltage circuit load is bigger having a power failure adjusting, without whole low-voltage platform is had a power failure, reduce power failure range, improve power supply reliability, and quickly commutation, quickly heavy load can be adjusted mutually, effectively reduce tri-phase unbalance factor.
This utility model is provided a kind of three-phase load unbalance adjusting apparatus be described in detail above.Principle of the present utility model and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand core concept of the present utility model.Should be understood that; for those skilled in the art; on the premise of without departing from this utility model principle, it is also possible to this utility model is carried out some improvement and modification, these improve and modification also falls in this utility model scope of the claims.
Claims (7)
1. a three-phase load unbalance adjusting apparatus, it is characterized in that, including: the three-phase low-voltage chopper being connected with three-phase circuit, the three-phase output end of described three-phase low-voltage chopper input with the first catalyst, the second catalyst and the 3rd catalyst respectively is connected, the outfan of described first catalyst connects the outfan of described second catalyst, and the outfan of described first catalyst connects the outfan of described 3rd catalyst.
Device the most according to claim 1, it is characterised in that described first catalyst includes the first catalyst body and the A phase start button controlling described first catalyst break-make and A phase stop button.
Device the most according to claim 2, it is characterised in that described second catalyst includes the second catalyst body and the B phase start button controlling described second catalyst break-make and B phase stop button.
Device the most according to claim 3, it is characterised in that described 3rd catalyst includes the 3rd catalyst body and the C phase start button controlling described 3rd catalyst break-make and C phase stop button.
Device the most according to claim 4, it is characterised in that also include:
It is connected with described first catalyst, the second catalyst and the 3rd catalyst respectively, for indicating the display lamp of work phase sequence.
Device the most according to claim 5, it is characterised in that also include:
It is connected with described first catalyst, the second catalyst and the 3rd catalyst, controls at most one in running order electric interlocking circuit in described first catalyst, the second catalyst and the 3rd catalyst three.
Device the most according to claim 5, it is characterised in that also include:
Three-phase load unbalance adjusting apparatus housing, described three-phase load unbalance adjusting apparatus housing includes a switch gate, described three-phase low-voltage chopper, the first catalyst, the second catalyst and the 3rd catalyst are fixedly installed in described three-phase load unbalance adjusting apparatus housing, and described A phase start button, A phase stop button, B phase start button, B phase stop button, C phase start button, C phase stop button and display lamp are arranged on the cabinet panel of described three-phase load unbalance adjusting apparatus housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620197083.2U CN205453147U (en) | 2016-03-15 | 2016-03-15 | Three -phase unbalanced load adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620197083.2U CN205453147U (en) | 2016-03-15 | 2016-03-15 | Three -phase unbalanced load adjusting device |
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| CN205453147U true CN205453147U (en) | 2016-08-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130046A (en) * | 2016-08-25 | 2016-11-16 | 李建新 | A kind of AC three-phase load automatic-balancing system |
| CN106571800A (en) * | 2016-10-31 | 2017-04-19 | 国家电网公司 | Three-phase switch |
| CN107528332A (en) * | 2017-08-19 | 2017-12-29 | 国网山东省电力公司青州市供电公司 | Three-phase load adjusting apparatus and production and preparation method thereof |
| CN109088419A (en) * | 2018-08-31 | 2018-12-25 | 邹平县供电公司 | Single phase poaer supply phasing switch |
-
2016
- 2016-03-15 CN CN201620197083.2U patent/CN205453147U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130046A (en) * | 2016-08-25 | 2016-11-16 | 李建新 | A kind of AC three-phase load automatic-balancing system |
| CN106130046B (en) * | 2016-08-25 | 2018-08-14 | 李建新 | A kind of AC three-phase load automatic-balancing system |
| CN106571800A (en) * | 2016-10-31 | 2017-04-19 | 国家电网公司 | Three-phase switch |
| CN107528332A (en) * | 2017-08-19 | 2017-12-29 | 国网山东省电力公司青州市供电公司 | Three-phase load adjusting apparatus and production and preparation method thereof |
| CN107528332B (en) * | 2017-08-19 | 2020-08-21 | 国网山东省电力公司青州市供电公司 | Three-phase load adjustment device and methods of making and using same |
| CN109088419A (en) * | 2018-08-31 | 2018-12-25 | 邹平县供电公司 | Single phase poaer supply phasing switch |
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